what the hell is a nug i keep hearin people say it but i dunno what it means. im good on most other words its just this one i got trouble with.
1 Improper use of contact lenses or steroid eyedrops can lead to fungal infections, which in turn can cause corneal ulcers. Also, a corneal injury that results in plant material getting into the eye can lead to fungal keratitis.  Acanthamoeba are microscopic, single-celled amoeba that can cause human infection.
It is not proven that alcohol alone can be the sole cause of an ulcer or whether H. pylori bacteria or NSAID's must also be present. Stress. Stress alone cannot be the sole cause of an ulcer, but it is considered as a contributing factor. Like smoking, both emotional and physical stress will delay the healing process.